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prefect.deployments.steps.core

Core primitives for running Prefect deployment steps.

Deployment steps are YAML representations of Python functions along with their inputs.

Whenever a step is run, the following actions are taken:

• The step’s inputs and block / variable references are resolved (see the prefect deploy documentation for more details)
• The step’s function is imported; if it cannot be found, the requires keyword is used to install the necessary packages
• The step’s function is called with the resolved inputs
• The step’s output is returned and used to resolve inputs for subsequent steps

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Classes

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StepExecutionError

Raised when a step fails to execute.